C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

code 34 and 24 in 1988 vette

Thread Tools
 
Search this Thread
 
Old Dec 22, 2005 | 12:37 PM
  #1  
5speedC4's Avatar
5speedC4
Thread Starter
Drifting
 
Joined: Sep 2005
Posts: 1,575
Likes: 3
From: Lowell Arkansas
Default code 34 and 24 in 1988 vette

well i get a code 34 - map sensor voltage low and maf sensor.....what does it mean?
i also get a code 24 - vehicle speed sensor, i swapped my 4+3 for a tremec 5 speed and havent got my speedometer going yet, i figure thats what the 24 is about.
Reply
Old Dec 22, 2005 | 01:09 PM
  #2  
Morley's Avatar
Morley
Drifting
 
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
Default

Originally Posted by 5speedC4
well i get a code 34 - map sensor voltage low and maf sensor.....what does it mean?
It means that the voltage reading coming from the MAF sensor is not what the ECM is expecting to see from it, based on TPS, engine/vehicle speed and other parameters.
Reply
Old Dec 22, 2005 | 02:01 PM
  #3  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default

Originally Posted by 5speedC4
well i get a code 34 - map sensor voltage low and maf sensor.....what does it mean?
It means you are working on the wrong car. Your 1988 Corvette doesn't even HAVE a MAP sensor. Additionally, it means to follow the trouble shooting charts in your factory service manual, for a code 34, to isolate, test, and cure the cause of the code being set.

RACE ON!!!
Reply
Old Dec 22, 2005 | 03:12 PM
  #4  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Default

http://members.shaw.ca/corvette86/Code%2034.pdf
http://members.shaw.ca/corvette86/Code%2024.pdf
Reply
Old Dec 22, 2005 | 07:39 PM
  #5  
jackdaroofer's Avatar
jackdaroofer
Race Director
Supporting Lifetime Gold
15 Year Member
 
Joined: Dec 1999
Posts: 11,182
Likes: 2
From: Almost all Skyline Cruises Vettes at Waterside 1-5
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In V Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Default

Originally Posted by 5speedC4
well i get a code 34 - map sensor voltage low and maf sensor.....what does it mean?
i also get a code 24 - vehicle speed sensor, i swapped my 4+3 for a tremec 5 speed and havent got my speedometer going yet, i figure thats what the 24 is about.
Most common cause of 34 is faulty MAF relay(s)

On an 88 they are the pair mounted to the wheel well in front of the battery

One is the power relay and one is the burn off relay but according to THE GORDEN and first hand experience, replace tem both at the same time. Be sure, of course to clear the codes

seeya
Reply

Get notified of new replies

To code 34 and 24 in 1988 vette





All times are GMT -4. The time now is 04:09 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE